Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I’m Jeffrey William Junior, a web developer and software engineer junior from Maputo, Mozambique. I’m currently studying Computer Engineering and Computer Science and I enjoy building practical projects—from academic systems to real-world prototypes. I work with both front-end and back-end technologies, using strong fundamentals like data structures and hashing, plus modern tools such as Spring Boot and Node.js. I also develop prototypes for competitions and hackathons, and I continuously improve through training in XR and AI-related courses.…I’m Jeffrey William Junior, a web developer and software engineer junior from Maputo, Mozambique. I’m currently studying Computer Engineering and Computer Science and I enjoy building practical projects—from academic systems to real-world prototypes. I work with both front-end and back-end technologies, using strong fundamentals like data structures and hashing, plus modern tools such as Spring Boot and Node.js. I also develop prototypes for competitions and hackathons, and I continuously improve through training in XR and AI-related courses.

Jeffrey William Junior

Web Developer, Web Designer, Front-End Developer, +5





I’m Jeffrey William Junior, a web developer and software engineer junior from Maputo, Mozambique. I’m currently studying Computer Engineering and Computer Science and I enjoy building practical projects—from academic systems to real-world prototypes. I work with both front-end and back-end technologies, using strong fundamentals like data structures and hashing, plus modern tools such as Spring Boot and Node.js. I also develop prototypes for competitions and hackathons, and I continuously improve through training in XR and AI-related courses.…I’m Jeffrey William Junior, a web developer and software engineer junior from Maputo, Mozambique. I’m currently studying Computer Engineering and Computer Science and I enjoy building practical projects—from academic systems to real-world prototypes. I work with both front-end and back-end technologies, using strong fundamentals like data structures and hashing, plus modern tools such as Spring Boot and Node.js. I also develop prototypes for competitions and hackathons, and I continuously improve through training in XR and AI-related courses.

Available to hire

I’m Jeffrey William Junior, a web developer and software engineer junior from Maputo, Mozambique. I’m currently studying Computer Engineering and Computer Science and I enjoy building practical projects—from academic systems to real-world prototypes.

I work with both front-end and back-end technologies, using strong fundamentals like data structures and hashing, plus modern tools such as Spring Boot and Node.js. I also develop prototypes for competitions and hackathons, and I continuously improve through training in XR and AI-related courses.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Beginner

Language

Portuguese

Fluent

English

Intermediate

Work Experience

XR Training (Extended Reality techniques development course) at Maputo Fast Forward (16Neto)

June 1, 2025 - September 30, 2025

Participated in XR training focused on Extended Reality techniques, including virtual reality and projection mapping concepts. Learned techniques used in activities involving XR, and gained hands-on experience using Unity and Unreal Engine to support XR-related development.

XR Training (Training Participant) at Maputo Fast Forward (16Neto)

June 1, 2025 - September 1, 2025

Participated in XR training and Extended Reality techniques development courses. Learned VR/XR and projection mapping techniques with practical use of Unity and Unreal Engine, covering methods used in virtual reality, extended reality activities, and projection mapping workflows.

Web Developer (Freelance) at Freelance

January 1, 2024 - Present

Developed web, academic, and course-based projects with both front-end and back-end development. Worked with code versioning and project implementation. Built a prototype for a financial education mobile app combining RPG-style gamification with group savings for the Vodacom-Mz 2026 MiniFinckathon. Also developed a web-based hospital patient management system in Java and Spring Boot demonstrating linear data structures and hash tables, including patient queues, priority handling, attendance history, undo/redo operations, and fast patient lookup by ID.

Web Developer at Freelance

January 1, 2024 - Present

Developed web, academic, and course-based projects with experience in both front-end and back-end development, code versioning, and project implementation. Built a prototype for a financial education mobile app that combines RPG-style gameplay with group savings for the Vodacom Mz 2026 MiniFinckathon. Also built a web-based hospital patient management system in Java and Spring Boot, demonstrating linear data structures and a custom hash table, including patient queues, priority handling, attendance history, undo/redo operations, and fast lookup by ID.

Web Designer

January 2, 2023 - Present

Managed the design team and mentored junior designers to improve design quality and efficiency. Worked closely with clients to understand their needs and goals and translate them into effective design solutions.

Music Producer

March 1, 2020 - Present

Composed and produced original tracks and beats, blending technical skills with creative vision. Collaborated with artists to refine sound aesthetics, ensuring high-quality recordings and mixes. Used DAWs (e.g., FL Studio) and audio tools to craft immersive soundscapes and polished final products.